Kenka Bancho: Badass Rumble

[LunaMoo]

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2. Eternal loading loop after choosing MOVES in your room.
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If you use not "kiss of death" ISO in 0.9.1 theres no loop but graphical artifacts in MOVES screen.

By the gamefaqs forums, loading loop with Moves menu is a pirated copy bug and I assume the other iso you mention is also pirated.

It works fine without any patches, if you buy original game:
   

But yeah, the story mode hangs anyway, possibly by some timing inaccuracy as it happened on real psp for many people with some cfw as well, unfortunately the new "simulate UMD delays" didn't helped(althrough it might not be finished yet).